Sulfonic acid functionalized SBA-15 silica as a methylaluminoxane-free Cocatalyst/Support for ethylene polymerization

被引：51
|
作者：
Hicks, Jason C. [1 ]
Mullis, Brooke A. [1 ]
Jones, Christopher W. [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA
来源：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 27期
关键词：
D O I：
10.1021/ja0727870
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Silica-tethered fluorinated sulfonic acids in combination with trimethylaluminum activate metallocenes for the polymerization of ethylene. Various control experiments indicate that the in situ formation of known cocatalysts such as methylaluminoxane is not likely. It is proposed that the interaction between the alkylaluminum and the supported sulfonic acid creates a site that can activate the zirconocene precatalyst to form the polymerization catalyst. This is a new combined support/activator for single-site olefin polymerization.
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收藏
页码：8426 / +
页数：3
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